Telefonaktiebolaget Lm Ericsson (publ)

Antonio Iniesta Gonzalez

Susana Fernandez Alonso

Maria Belen Pancorbo Marcos

Fuencisla Garcia Azorero

Miguel Angel Garcia Martin

Miguel Angel Puente Pestaña

Wenliang Xu

Ignacio Rivas Molina

Roland Gustafsson

Ulf Mattsson

Angel Navas Cornejo

Patrik Dannebro

Irene Martin Cabello

Marta Montejo Ayala

Jesús Ángel De Gregorio Rodriguez

A method for event subscription management in a communications network performed by a Network Function producer (NFp) and a Network Function consumer (NFc). The method comprises establishing a subscription to an event from the NFc to the NFp and transmitting from the NFp to the NFc a notification including an indication to trigger the cancelation of the subscription. In some embodiments, the method may further comprise triggering at the NFc a subscription modification based on the received notification. In some embodiments, the subscription modification triggered at the NFc comprises at least one of cancelling or terminating the subscription with the NFp and removing the subscription context at the NFc. In some embodiments, the subscription modification triggered at the NFc comprises at least one of selecting a different NFp and establishing a new subscription to the different NFp.

Network function subscription management

Systems and methods are disclosed herein for event notification in a core network of a cellular communications system. In one embodiment, a method performed by a first Policy and Control Function (PCF) serving an Access Management (AM) policy association for a User Equipment (UE) wherein the first PCF is comprised in a core network of a cellular communications system comprises subscribing to an event exposure service of a second PCF serving a Session Management (SM) policy association for the UE. The method further comprises, responsive to subscribing to the event exposure service of the second PCF, receiving a report from the second PCF. In this manner, separate deployments of the first and second PCFs are enabled and still the first PCF serving the AM policy association for the UE can implement AM policies for the UE, e.g., based on UE data usage, e.g., of specified service bundles.

Extension of Npcf_EventExposure with usage monitoring event

Embodiments include methods of updating a background data transfer (BDT) policy negotiated between an application function (AF) and a core network (CN) of a telecommunication network. Such methods can be performed by a Policy Control Function (PCF) of the CN and can include, in response to receiving a notification of degraded network performance of a network area, determining that the negotiated BDT policy is affected by the degraded network performance and an Application Service Provider (ASP) associated with the negotiated BDT policy requested a warning notification. Such methods can include determining, at least based on operator policies, updated BDT policy information for the negotiated BDT policy, wherein the updated BDT policy information comprises at least one of the following: at least one candidate BDT policy, and updated conditions for the negotiated BDT policy. Such methods can include sending the updated BDT policy information to the AF.

Updating a background data transfer policy negotiated between an application function and a core network

A method that includes a policy function transmitting to a depository function a request for information; and the policy function receiving a response to the request, wherein the response comprises: a usageMonDataLimit instance comprising a limit identifier; and a usageMonData instance corresponding to the usageMonDataLimit instance, wherein the usageMonData instance also comprises the limit identifier.

Usage monitoring data control

The present disclosure addresses the issues of missing procedures on subscription to notification of subscription data changes in current standards, and provides for amending the 'Policy Data Subscription' data structure to indicate that the URI of the “Policy Data Subscriptions” resource and the URI of the “Individual Policy Data Subscription” resource are excluded from the list of resources for which a modification triggers a notification. The present disclosure also provides for new attributes to be included in the “Policy Data Change Notification” data type.

Subscription to changes in policy data

The present disclosure addresses missing procedures on subscription to notification of subscription data changes in current standards and provides for amending the 'Policy Data Subscription' data structure to indicate that the URI of the “Policy Data Subscriptions” resource and the URI of the “Individual Policy Data Subscription” resource are excluded from the list of resources for which a modification triggers a notification. The present disclosure also provides for new attributes to be included in the “Policy Data Change Notification” data type.

A method of updating a background data transfer, BDT, policy negotiated between an application function, AF, and a Core Network, CN, is disclose. The method is performed by a Policy Control Function, PCF, of the CN and comprises determining updated BDT policy information including updated conditions for the negotiated BDT policy and at least one candidate BDT policy for the AP to select when the PCF determines that the negotiated BDT policy is affected by degraded network performance. The determined updated BDT policy information is then sent to the AF by the PCF using notification type interaction, thereby effectively updating the negotiated BDT policy.

Method of updating a background data transfer policy negotiated between an application function and a core network, a policy control function, and an application function

The embodiments herein relate to a method performed by a SMF, for handling local breakout of traffic. The SMF receives, from a PCF, policy information indicating traffic that should be routed via a second UPF to a second DN. The SMF provides, to a first UPF, a first traffic detection filter for detecting the traffic indicated in the received policy information. The SMF detects that there is traffic matching the first traffic detection filter. The SMF sets up, according to the policy information, a local breakout to the second UPF when the matching traffic has been detected. The setting-up comprises setting-up the second UPF.

Growing community of inventors

Madrid, Spain

Antonio Iniesta Gonzalez